My 13 year old daughter just received her blood test results and her ANA was titer 1:320. Her doctor said that she was positive for lupus and is scheduling us with a rheumatologist. But I've been doing some research (obviously) about lupus and have found conflicting information about a positive ANA. Is 1:320 a definite high number? Should I start worrying now or should I wait until after we meet with a rheumatologist? Freaked out Mommy!